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Nuetrik [128]
3 years ago
14

Find the product mentally. [(x + 1)(x - 1)]>2

Mathematics
1 answer:
Olin [163]3 years ago
7 0

Answer:

This is a Difference of Squares so (x+1)(x-1) = x^{2} -1

Therefore,  x^{2} -1 > 2 or x>±\sqrt{3}.

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Find KL and show work
MissTica

Answer:

<u>Secant</u>: a straight line that intersects a circle at two points.

<u>Intersecting Secants Theorem</u>

If two secant segments are drawn to the circle from one exterior point, the product of the measures of one secant segment and its external part is equal to the product of the measures of the other secant segment and its external part.

From inspection of the given diagram:

  • M = Exterior point
  • MK = secant segment and ML is its external part
  • MS = secant segment and MN is its external part

Therefore:

⇒ ML · MK = MN · MS

Given:

  • MK = (x + 15) + 6 = x + 21
  • ML = 6
  • MS = 7 + 11 = 18
  • MN = 7

Substituting the given values into the formula and solving for x:

⇒ ML · MK = MN · MS

⇒ 6(x + 21) = 7 · 18

⇒ 6x + 126 = 126

⇒ 6x = 0

⇒ x = 0

Substituting the found value of x into the expression for KL:

⇒ KL = x + 15

⇒ KL = 0 + 15

⇒ KL = 15

6 0
2 years ago
Read 2 more answers
Simplify the expression. 6÷2⋅33(3)
stich3 [128]

Answer:

297 When you simplify you get a total of 297 I hope this helped.

I hate asking for things but can I have brainliest Im trying to rank up.

Step-by-step explanation:

6 0
3 years ago
Aşağıda verilen balik kılçığı diyagramını tamamlayalım.<br>​
oee [108]

Answer:  

Let's complete the fishbone diagram given below

thats  what they said

Step-by-step explanation:

8 0
3 years ago
Of 1200 employees in a factory , 80 were absent today . What Percentage were absent ?
arsen [322]
\frac{80}{1200} * 100 = 6.\overline{66}\% \approx 6.67\%
7 0
3 years ago
Read 2 more answers
I am bad at geometry please help
VashaNatasha [74]

Answer:

3.9 in^2

Step-by-step explanation:

Split it up into a top rectangle and a bottom rectangle. Find the area of the top rectangle and subtract the combined area of the two quarter circles.

The area of the rectangle is 6  * 3 = 18. The area of the two quarter circles is the same as the area of one semicircle, and since the radius is 3 you can do:

3^2 * pi / 2 = 9pi/2. As a decimal this would be: 14.14.

Then, you can do rectangle - circle = 18 - 14.14 = 3.86. Rounded to the nearest tenth, this is 3.9

4 0
3 years ago
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